I've had Rachio in place for about 3 months now, controlling 6 zones, and it has run perfect with no issues. I have it set on a schedule and have only used the manual option a handful of times.

This morning, my sprinklers ran on their schedule at 4am and finished by 5:30am. At about 7:45am, the sprinklers started back up again on their own. No schedule was set for this time, and I didn't start them manually.

When I went into the app, it didn't show anything as running, and even more disturbing, I couldn't find anyway to stop them. I tried setting it to Standby mode (but I guess that only affects the schedule). I also tried disabling the zones, but that didn't help.

I finally had to shut the water to the sprinklers off completely to get them to stop.

Has anyone come across this before? Could it be a faulty Rachio controller, or could it possibly be a problem with the sprinkler valves?

@cpeters - so in the watering history on the web UI does it have a finished watering message at 5:30 AM and then no other messages after that? This sounds like Smart Cycle, but I think the time between the runs is too large for it to be Smart Cycle.

I have an event actually at 5:40am showing Completed Zone 1, Zone 2, etc. for 100 minutes. Then at 7:47am, I have an event that says "Started manual schedule for 10 minutes", and another event at the same time saying "Watering Zone 5 for 10 minutes". And then another event at the exact same time (7:47am) saying "Stopped manual schedule for 10 minutes". At 7:48am, it went through a similar set of messages but for a different zone. This went on through several of the zones until I finally had to shut the water off to get it to stop.

No automated jobs in SmartThings. When I couldn't get them to turn off from the Rachio app, I did go into SmartThings app and try to stop them from there a few times, but that didn't work either.

I've left the water off for the last 2 days. Rachio app still in Standby Mode for the schedule.

I turned the water back on this morning to see what would happen. Immediately there at least 2 zones that started up. Phone was in my hand, so no "pocket sprinkling"

Checked the Rachio app and the SmartThings app. Neither one showed the zones running and again I couldn't stop them from either app. I once again had to shut off the main valve to the sprinklers to get them to stop.

Not sure what else to do at this point, other than maybe getting my irrigation company out here to take a look.